I have one user who wants to access our Zimbra Server with Outlook/ZCO through a authenticating squid http proxy.

I was pretty sure that this should work as I saw the proxy configuration dialog during the ZCO installation before. But ZCO does not seem to connect to the proxy. I doublechecked that the proxy settings are correct.

What could be the problem here? Are there known issues about authenticating proxies and ZCO?
BTW: Username and Password for the http proxy are not the same as the Zimbra Account credentials...

Regards
Thomas

03-28-2008, 01:01 PM

alee

Quote:

Originally Posted by deepblue

Hi,

I have one user who wants to access our Zimbra Server with Outlook/ZCO through a authenticating squid http proxy.

I was pretty sure that this should work as I saw the proxy configuration dialog during the ZCO installation before. But ZCO does not seem to connect to the proxy. I doublechecked that the proxy settings are correct.

What could be the problem here? Are there known issues about authenticating proxies and ZCO?
BTW: Username and Password for the http proxy are not the same as the Zimbra Account credentials...

Regards
Thomas

have you tried to configure the proxy settings in IE and have ZCO use the IE settings?

03-28-2008, 02:25 PM

deepblue

Quote:

Originally Posted by alee

have you tried to configure the proxy settings in IE and have ZCO use the IE settings?

I tried both (IE Settings and to configure the proxyserver dirctly into ZCO). I had no success. I could verify, that ZCO did not even connect to the proxy (no log entry in the squid).

How can I debug that?

Regards
Thomas

03-28-2008, 02:27 PM

alee

Quote:

Originally Posted by deepblue

I tried both (IE Settings and to configure the proxyserver dirctly into ZCO). I had no success. I could verify, that ZCO did not even connect to the proxy (no log entry in the squid).

How can I debug that?

Regards
Thomas

try downloading and installing winhttptracecfg
this will tell you exactly what is going over the wire via http

03-28-2008, 02:31 PM

deepblue

Quote:

Originally Posted by alee

try downloading and installing winhttptracecfg
this will tell you exactly what is going over the wire via http

Thanx for the quick reply. I will try that, but it will take until monday...

Regards and Thanx
Thomas

03-31-2008, 04:28 AM

deepblue

Quote:

Originally Posted by alee

try downloading and installing winhttptracecfg
this will tell you exactly what is going over the wire via http

Hi,

I installed winhttptracecfg. I can see, that the ZCO connects to the squid http proxy (I can also see entries in the squid access log). The squid returns "authentication required" but the ZCO does not open a dialog for the basic authentication....

The question is: what is the expected behaviour? Is it simply not supportet (ZCO through authenticating proxy), or is it a bug, that the auth dialog is not raised...

Regards
Thomas

05-09-2008, 07:48 AM

archery57

This is the question ........

Quote:

Originally Posted by deepblue

......
The question is: what is the expected behaviour? Is it simply not supportet (ZCO through authenticating proxy), or is it a bug, that the auth dialog is not raised...
.....

Hi guys,
I've the same problem and verified the same "no autentication" by Olk Plugin.
Waht's about that?
It's a big bug ;)
Waiting for an answer, all the best
Diego

05-11-2008, 08:15 AM

deepblue

Quote:

Originally Posted by archery57

Hi guys,
I've the same problem and verified the same "no autentication" by Olk Plugin.
Waht's about that?
It's a big bug ;)
Waiting for an answer, all the best
Diego

Hi,

I never received an answer whether this is a bug or simply not supported (ZCO through authenticating proxy). The issue is not so important to me to open a support ticket for that.

But it is simply somewhat unsatisfying not to know if we are observing a bug or if we have to open an enhancement request....

Regards
Thomas

05-12-2008, 02:35 AM

archery57

Hi Thomas,
unfortunately this is a big problem for my organization.
Manager using outlook aren't able to gain access to Zimbra when they work connected to Company intranet because of proxy validation (Zimbra front end is located in DMZ).
When they are outside, connected via internet provider, all works fine.
I think should be time for me to open a ticket about that.
Thanks for your quick answer.
All the best
Diego

07-18-2008, 01:20 AM

deepblue

Quote:

Originally Posted by archery57

I think should be time for me to open a ticket about that.
Thanks for your quick answer.
All the best
Diego